EP 2814255 B1 20170104 - Method and apparatus for detecting frame types
Title (en)
Method and apparatus for detecting frame types
Title (de)
Verfahren und Vorrichtung zur Detektion von Rahmentypen
Title (fr)
Procédé et appareil pour la détection de types de trames vidéo
Publication
Application
Priority
- CN 201010594322 A 20101217
- EP 11848791 A 20110929
Abstract (en)
[origin: EP2637410A1] Embodiments of the present invention disclose a method and an apparatus for detecting frame types. The method includes: detecting play time of each frame; and if the play time of a current frame is less than the maximum play time of received frames, determining the current frame as a bi-directional predicted frame, B-frame. In the technical solutions provided by the embodiments of the present invention, the frame types are determined according to a coding sequence of various frames and comparison between data amounts of various frames received earlier and later, without decoding a payload. Therefore the impact of a reduction factor is eliminated and the frame types can be detected more accurately.
IPC 8 full level
H04N 19/89 (2014.01); H04N 19/503 (2014.01)
CPC (source: EP US)
H04N 19/503 (2014.11 - EP US); H04N 19/577 (2014.11 - US); H04N 19/89 (2014.11 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2637410 A1 20130911; EP 2637410 A4 20140730; EP 2637410 B1 20200909; CN 102547300 A 20120704; CN 102547300 B 20150121; EP 2814255 A2 20141217; EP 2814255 A3 20150603; EP 2814255 B1 20170104; US 2013279585 A1 20131024; US 9497459 B2 20161115; WO 2012079406 A1 20120621
DOCDB simple family (application)
EP 11848791 A 20110929; CN 201010594322 A 20101217; CN 2011080343 W 20110929; EP 14182578 A 20110929; US 201313919674 A 20130617